rockchip: rk3188: Add main, spl and tpl boards
The rk3188 needs 3 U-Boot stages: a tpl living in 1KB of sram, a spl the resides in the rest of the sram and loads the regular U-Boot living in regular ram. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Heiko Stübner
Simon Glass
parent
3e747197b1
commit
df9041ec72
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@ -4,11 +4,16 @@
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# SPDX-License-Identifier: GPL-2.0+
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#
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ifdef CONFIG_SPL_BUILD
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ifdef CONFIG_TPL_BUILD
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obj-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board-tpl.o
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obj-$(CONFIG_ROCKCHIP_BROM_HELPER) += save_boot_param.o
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else ifdef CONFIG_SPL_BUILD
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obj-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board-spl.o
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obj-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board-spl.o
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obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board-spl.o
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obj-$(CONFIG_ROCKCHIP_BROM_HELPER) += save_boot_param.o
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else
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obj-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board.o
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obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board.o
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obj-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board.o
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endif
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@ -0,0 +1,218 @@
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/*
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* (C) Copyright 2015 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <debug_uart.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <led.h>
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#include <malloc.h>
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#include <ram.h>
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#include <spl.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <asm/arch/bootrom.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/periph.h>
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#include <asm/arch/pmu_rk3188.h>
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#include <asm/arch/sdram.h>
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#include <asm/arch/timer.h>
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#include <dm/pinctrl.h>
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#include <dm/root.h>
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#include <dm/test.h>
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#include <dm/util.h>
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#include <power/regulator.h>
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#include <syscon.h>
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DECLARE_GLOBAL_DATA_PTR;
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u32 spl_boot_device(void)
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{
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#if !CONFIG_IS_ENABLED(OF_PLATDATA)
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const void *blob = gd->fdt_blob;
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struct udevice *dev;
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const char *bootdev;
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int node;
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int ret;
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bootdev = fdtdec_get_config_string(blob, "u-boot,boot0");
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debug("Boot device %s\n", bootdev);
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if (!bootdev)
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goto fallback;
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node = fdt_path_offset(blob, bootdev);
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if (node < 0) {
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debug("node=%d\n", node);
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goto fallback;
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}
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ret = device_get_global_by_of_offset(node, &dev);
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if (ret) {
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debug("device at node %s/%d not found: %d\n", bootdev, node,
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ret);
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goto fallback;
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}
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debug("Found device %s\n", dev->name);
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switch (device_get_uclass_id(dev)) {
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case UCLASS_SPI_FLASH:
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return BOOT_DEVICE_SPI;
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case UCLASS_MMC:
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return BOOT_DEVICE_MMC1;
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default:
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debug("Booting from device uclass '%s' not supported\n",
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dev_get_uclass_name(dev));
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}
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fallback:
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#endif
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return BOOT_DEVICE_MMC1;
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}
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u32 spl_boot_mode(const u32 boot_device)
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{
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return MMCSD_MODE_RAW;
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}
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void board_init_f(ulong dummy)
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{
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struct udevice *pinctrl, *dev;
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struct rk3188_pmu *pmu;
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int ret;
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/* Example code showing how to enable the debug UART on RK3188 */
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#ifdef EARLY_UART
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#include <asm/arch/grf_rk3188.h>
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/* Enable early UART on the RK3188 */
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#define GRF_BASE 0x20008000
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struct rk3188_grf * const grf = (void *)GRF_BASE;
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rk_clrsetreg(&grf->gpio1b_iomux,
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GPIO1B1_MASK << GPIO1B1_SHIFT |
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GPIO1B0_MASK << GPIO1B0_SHIFT,
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GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT |
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GPIO1B0_UART2_SIN << GPIO1B0_SHIFT);
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/*
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* Debug UART can be used from here if required:
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*
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* debug_uart_init();
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* printch('a');
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* printhex8(0x1234);
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* printascii("string");
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*/
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debug_uart_init();
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printch('s');
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printch('p');
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printch('l');
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printch('\n');
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#endif
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ret = spl_init();
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if (ret) {
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debug("spl_init() failed: %d\n", ret);
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hang();
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}
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rockchip_timer_init();
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ret = rockchip_get_clk(&dev);
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if (ret) {
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debug("CLK init failed: %d\n", ret);
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return;
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}
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/*
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* Recover the bootrom's stackpointer.
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* For whatever reason needs to run after rockchip_get_clk.
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*/
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pmu = syscon_get_first_range(ROCKCHIP_SYSCON_PMU);
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if (IS_ERR(pmu))
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error("pmu syscon returned %ld\n", PTR_ERR(pmu));
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SAVE_SP_ADDR = readl(&pmu->sys_reg[2]);
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ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
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if (ret) {
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debug("Pinctrl init failed: %d\n", ret);
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return;
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}
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ret = uclass_get_device(UCLASS_RAM, 0, &dev);
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if (ret) {
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debug("DRAM init failed: %d\n", ret);
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return;
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}
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#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
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back_to_bootrom();
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#endif
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}
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static int setup_led(void)
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{
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#ifdef CONFIG_SPL_LED
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struct udevice *dev;
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char *led_name;
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int ret;
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led_name = fdtdec_get_config_string(gd->fdt_blob, "u-boot,boot-led");
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if (!led_name)
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return 0;
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ret = led_get_by_label(led_name, &dev);
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if (ret) {
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debug("%s: get=%d\n", __func__, ret);
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return ret;
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}
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ret = led_set_on(dev, 1);
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if (ret)
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return ret;
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#endif
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return 0;
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}
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void spl_board_init(void)
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{
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struct udevice *pinctrl;
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int ret;
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ret = setup_led();
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if (ret) {
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debug("LED ret=%d\n", ret);
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hang();
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}
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ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
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if (ret) {
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debug("%s: Cannot find pinctrl device\n", __func__);
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goto err;
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}
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#ifdef CONFIG_SPL_MMC_SUPPORT
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ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
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if (ret) {
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debug("%s: Failed to set up SD card\n", __func__);
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goto err;
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}
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#endif
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/* Enable debug UART */
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ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG);
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if (ret) {
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debug("%s: Failed to set up console UART\n", __func__);
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goto err;
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}
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preloader_console_init();
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#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
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back_to_bootrom();
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#endif
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return;
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err:
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printf("spl_board_init: Error %d\n", ret);
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/* No way to report error here */
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hang();
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}
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@ -0,0 +1,86 @@
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/*
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* (C) Copyright 2015 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <debug_uart.h>
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#include <spl.h>
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#include <asm/io.h>
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#include <asm/arch/bootrom.h>
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#include <asm/arch/pmu_rk3188.h>
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DECLARE_GLOBAL_DATA_PTR;
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/* track how often we were entered */
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static int rk3188_num_entries __attribute__ ((section(".data")));
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#define PMU_BASE 0x20004000
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#define TPL_ENTRY 0x10080C00
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static void jump_to_spl(void)
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{
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typedef void __noreturn (*image_entry_noargs_t)(void);
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struct rk3188_pmu * const pmu = (void *)PMU_BASE;
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image_entry_noargs_t tpl_entry =
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(image_entry_noargs_t)(unsigned long)TPL_ENTRY;
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/* Store the SAVE_SP_ADDR in a location shared with TPL. */
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writel(SAVE_SP_ADDR, &pmu->sys_reg[2]);
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tpl_entry();
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}
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void board_init_f(ulong dummy)
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{
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/* Example code showing how to enable the debug UART on RK3188 */
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#ifdef EARLY_UART
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#include <asm/arch/grf_rk3188.h>
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/* Enable early UART on the RK3188 */
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#define GRF_BASE 0x20008000
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struct rk3188_grf * const grf = (void *)GRF_BASE;
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rk_clrsetreg(&grf->gpio1b_iomux,
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GPIO1B1_MASK << GPIO1B1_SHIFT |
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GPIO1B0_MASK << GPIO1B0_SHIFT,
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GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT |
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GPIO1B0_UART2_SIN << GPIO1B0_SHIFT);
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/*
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* Debug UART can be used from here if required:
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*
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* debug_uart_init();
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* printch('a');
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* printhex8(0x1234);
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* printascii("string");
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*/
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debug_uart_init();
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printch('t');
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printch('p');
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printch('l');
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printch('-');
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printch(rk3188_num_entries + 1 + '0');
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printch('\n');
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#endif
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rk3188_num_entries++;
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if (rk3188_num_entries == 1) {
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/*
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* The original loader did some very basic integrity
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* checking at this point, but the remaining few bytes
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* could be used for any improvement making sense
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* really early on.
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*/
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back_to_bootrom();
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} else {
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/*
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* TPL part of the loader should now wait for us
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* at offset 0xC00 in the sram. Should never return
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* from there.
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*/
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jump_to_spl();
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}
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}
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@ -0,0 +1,71 @@
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/*
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* (C) Copyright 2015 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <clk.h>
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#include <dm.h>
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#include <ram.h>
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#include <syscon.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/periph.h>
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#include <asm/arch/pmu_rk3288.h>
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#include <asm/arch/boot_mode.h>
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#include <asm/gpio.h>
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#include <dm/pinctrl.h>
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DECLARE_GLOBAL_DATA_PTR;
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int board_init(void)
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{
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#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM)
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struct udevice *pinctrl;
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int ret;
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/*
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* We need to implement sdcard iomux here for the further
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* initialization, otherwise, it'll hit sdcard command sending
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* timeout exception.
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*/
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ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
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if (ret) {
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debug("%s: Cannot find pinctrl device\n", __func__);
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goto err;
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}
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ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
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if (ret) {
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debug("%s: Failed to set up SD card\n", __func__);
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goto err;
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}
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return 0;
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err:
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printf("board_init: Error %d\n", ret);
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/* No way to report error here */
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hang();
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return -1;
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#else
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return 0;
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#endif
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}
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int dram_init(void)
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{
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/* FIXME: read back ram size from sys_reg2 */
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gd->ram_size = 0x40000000;
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return 0;
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}
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#ifndef CONFIG_SYS_DCACHE_OFF
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void enable_caches(void)
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{
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/* Enable D-cache. I-cache is already enabled in start.S */
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dcache_enable();
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}
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#endif
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